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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Differential expression of matrix metalloproteinase and tissue inhibitor of matrix metalloproteinase genes in the mouse central nervous system in normal and inflammatory states.</title><author><name sortKey="Pagenstecher, A" sort="Pagenstecher, A" uniqKey="Pagenstecher A" first="A." last="Pagenstecher">A. Pagenstecher</name></author><author><name sortKey="Stalder, A K" sort="Stalder, A K" uniqKey="Stalder A" first="A. K." last="Stalder">A. K. Stalder</name></author><author><name sortKey="Kincaid, C L" sort="Kincaid, C L" uniqKey="Kincaid C" first="C. L." last="Kincaid">C. L. Kincaid</name></author><author><name sortKey="Shapiro, S D" sort="Shapiro, S D" uniqKey="Shapiro S" first="S. D." last="Shapiro">S. D. Shapiro</name></author><author><name sortKey="Campbell, I L" sort="Campbell, I L" uniqKey="Campbell I" first="I. L." last="Campbell">I. L. Campbell</name></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">9502415</idno><idno type="pmc">1858390</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1858390</idno><idno type="RBID">PMC:1858390</idno><date when="1998">1998</date><idno type="wicri:Area/Pmc/Corpus">000043</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000043</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Differential expression of matrix metalloproteinase and tissue inhibitor of matrix metalloproteinase genes in the mouse central nervous system in normal and inflammatory states.</title><author><name sortKey="Pagenstecher, A" sort="Pagenstecher, A" uniqKey="Pagenstecher A" first="A." last="Pagenstecher">A. Pagenstecher</name></author><author><name sortKey="Stalder, A K" sort="Stalder, A K" uniqKey="Stalder A" first="A. K." last="Stalder">A. K. Stalder</name></author><author><name sortKey="Kincaid, C L" sort="Kincaid, C L" uniqKey="Kincaid C" first="C. L." last="Kincaid">C. L. Kincaid</name></author><author><name sortKey="Shapiro, S D" sort="Shapiro, S D" uniqKey="Shapiro S" first="S. D." last="Shapiro">S. D. Shapiro</name></author><author><name sortKey="Campbell, I L" sort="Campbell, I L" uniqKey="Campbell I" first="I. L." last="Campbell">I. L. Campbell</name></author></analytic><series><title level="j">The American Journal of Pathology</title><idno type="ISSN">0002-9440</idno><idno type="eISSN">1525-2191</idno><imprint><date when="1998">1998</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>Matrix metalloproteinases (MMPs) are implicated in the pathogenesis of inflammatory disorders of the central nervous system (CNS) whereas the contribution of the major endogenous counter-regulators of MMPs, the tissue inhibitors of the matrix metalloproteinases (TIMPs), is unclear. We investigated the temporal and spatial expression patterns in the CNS of nine MMP genes and three TIMP genes in normal mice, in mice with EAE, and in transgenic mice with astrocyte (glial fibrillary acidic protein)-targeted expression of the cytokines interleukin-3 (macrophage/microglial demyelinating disease), interleukin-6 (neurodegenerative disease), or tumor necrosis factor-alpha (lymphocytic encephalomyelitis). In normal mice, the MMPs MT1-MMP, stromelysin 3, and gelatinase B were expressed at low levels, whereas high expression of TIMP-2 and TIMP-3 was observed predominantly in neurons and in the choroid plexus, respectively. In EAE and the transgenic mice, significant induction or up-regulation of various MMP genes was observed, the pattern of which was somewhat specific for each of the models, and there was significant induction of TIMP-1. In situ localization experiments revealed a dichotomy between MMP expression that was restricted to leukocytes and possibly microglia within inflammatory lesions and TIMP-1 expression that was observed in activated astrocytes circumscribing the lesions. These findings demonstrate specific spatial and temporal regulation in the expression of individual MMP and TIMP genes in the CNS in normal and inflammatory states. The distinct localization of TIMP-1 and MMP expression during CNS inflammation suggests a dynamic state in which the interplay between these gene products may determine both the size and resolution of the destructive inflammatory focus.</p><sec sec-type="scanned-figures"><title>Images</title><fig id="F1"><label>Figure 1</label><graphic xlink:href="amjpathol00015-0110-a" xlink:role="731"></graphic></fig><fig id="F2"><label>Figure 2</label><graphic xlink:href="amjpathol00015-0110-b" xlink:role="731"></graphic></fig><fig id="F3"><label>Figure 3</label><graphic xlink:href="amjpathol00015-0111-a" xlink:role="732"></graphic></fig><fig id="F4"><label>Figure 4</label><graphic xlink:href="amjpathol00015-0113-a" xlink:role="734"></graphic></fig><fig id="F5"><label>Figure 5</label><graphic xlink:href="amjpathol00015-0114-a" xlink:role="735"></graphic></fig><fig id="F6"><label>Figure 6</label><graphic xlink:href="amjpathol00015-0115-a" xlink:role="736"></graphic></fig><fig id="F7"><label>Figure 7</label><graphic xlink:href="amjpathol00015-0116-a" xlink:role="737"></graphic></fig></sec></div></front></TEI><pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front><journal-meta><journal-id journal-id-type="nlm-ta">Am J Pathol</journal-id><journal-title>The American Journal of Pathology</journal-title><issn pub-type="ppub">0002-9440</issn><issn pub-type="epub">1525-2191</issn></journal-meta><article-meta><article-id pub-id-type="pmid">9502415</article-id><article-id pub-id-type="pmc">1858390</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title>Differential expression of matrix metalloproteinase and tissue inhibitor of matrix metalloproteinase genes in the mouse central nervous system in normal and inflammatory states.</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Pagenstecher</surname><given-names>A.</given-names></name></contrib><contrib contrib-type="author"><name><surname>Stalder</surname><given-names>A. K.</given-names></name></contrib><contrib contrib-type="author"><name><surname>Kincaid</surname><given-names>C. L.</given-names></name></contrib><contrib contrib-type="author"><name><surname>Shapiro</surname><given-names>S. D.</given-names></name></contrib><contrib contrib-type="author"><name><surname>Campbell</surname><given-names>I. L.</given-names></name></contrib></contrib-group><aff>Department of Neuropharmacology, The Scripps Research Institute, La Jolla, California 92037, USA.</aff><pub-date pub-type="ppub"><month>3</month><year>1998</year></pub-date><volume>152</volume><issue>3</issue><fpage>729</fpage><lpage>741</lpage><abstract><p>Matrix metalloproteinases (MMPs) are implicated in the pathogenesis of inflammatory disorders of the central nervous system (CNS) whereas the contribution of the major endogenous counter-regulators of MMPs, the tissue inhibitors of the matrix metalloproteinases (TIMPs), is unclear. We investigated the temporal and spatial expression patterns in the CNS of nine MMP genes and three TIMP genes in normal mice, in mice with EAE, and in transgenic mice with astrocyte (glial fibrillary acidic protein)-targeted expression of the cytokines interleukin-3 (macrophage/microglial demyelinating disease), interleukin-6 (neurodegenerative disease), or tumor necrosis factor-alpha (lymphocytic encephalomyelitis). In normal mice, the MMPs MT1-MMP, stromelysin 3, and gelatinase B were expressed at low levels, whereas high expression of TIMP-2 and TIMP-3 was observed predominantly in neurons and in the choroid plexus, respectively. In EAE and the transgenic mice, significant induction or up-regulation of various MMP genes was observed, the pattern of which was somewhat specific for each of the models, and there was significant induction of TIMP-1. In situ localization experiments revealed a dichotomy between MMP expression that was restricted to leukocytes and possibly microglia within inflammatory lesions and TIMP-1 expression that was observed in activated astrocytes circumscribing the lesions. These findings demonstrate specific spatial and temporal regulation in the expression of individual MMP and TIMP genes in the CNS in normal and inflammatory states. The distinct localization of TIMP-1 and MMP expression during CNS inflammation suggests a dynamic state in which the interplay between these gene products may determine both the size and resolution of the destructive inflammatory focus.</p><sec sec-type="scanned-figures"><title>Images</title><fig id="F1"><label>Figure 1</label><graphic xlink:href="amjpathol00015-0110-a" xlink:role="731"></graphic></fig><fig id="F2"><label>Figure 2</label><graphic xlink:href="amjpathol00015-0110-b" xlink:role="731"></graphic></fig><fig id="F3"><label>Figure 3</label><graphic xlink:href="amjpathol00015-0111-a" xlink:role="732"></graphic></fig><fig id="F4"><label>Figure 4</label><graphic xlink:href="amjpathol00015-0113-a" xlink:role="734"></graphic></fig><fig id="F5"><label>Figure 5</label><graphic xlink:href="amjpathol00015-0114-a" xlink:role="735"></graphic></fig><fig id="F6"><label>Figure 6</label><graphic xlink:href="amjpathol00015-0115-a" xlink:role="736"></graphic></fig><fig id="F7"><label>Figure 7</label><graphic xlink:href="amjpathol00015-0116-a" xlink:role="737"></graphic></fig></sec></abstract></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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